Bioptical laser scanning system providing 360° of omnidirectional bar code symbol scanning coverage at a point of sale (POS) station
First Claim
1. A bioptical laser scanning system providing 360°
- omnidirectional bar code symbol scanning coverage at a point of sale (POS) station, said bioptical laser scanning system comprising;
a horizontal section integrally connected to a vertical section;
a horizontal-scanning window formed in said horizontal section;
a vertical-scanning window formed in said vertical section, and being substantially orthogonal to said bottom-scanning window;
a first plurality of laser beam folding mirrors disposed within said horizontal section;
a second plurality of laser beam folding mirrors disposed within said vertical section;
a first laser beam production module for producing first laser beam, and a second laser beam production module for producing a second laser beam;
a rotating scanning element disposed within said horizontal section and having multiple surfaces rotating about an axis of rotation, for (i) scanning said laser beam and producing a first laser scanning beam that reflects off said first plurality of laser beam folding mirrors to generate and project a first plurality of laser scanning planes through said horizontal-scanning window, and (ii) scanning said second laser beam and producing a second laser scanning beam that reflects off said second plurality of laser beam folding mirrors to generate and project a second plurality of laser scanning through said vertical-scanning window, whereby said first and second pluralities of laser scanning planes (i) intersect within predetermined scan regions contained within a 3-D scanning volume defined between said horizontal-scanning and vertical-scanning windows, and (ii) generate a plurality of groups of intersecting laser scanning planes within said 3-D scanning volume, and wherein said plurality of groups of intersecting laser scanning planes form a complex omni-directional 3-D laser scanning pattern within said 3-D scanning volume capable of scanning a bar code symbol located on the surface of an object presented within said 3-D scanning volume at any orientation and from any direction at said POS station so as to provide 360°
of omnidirectional bar code symbol scanning coverage at said POS station.
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Accused Products
Abstract
Disclosed is a bioptical laser scanning system that provides 360° of omnidirectional bar code symbol scanning coverage at a point of sale (POS) station. The system generates a 3-D omnidirectional laser scanning pattern between the horizontal and vertical scanning windows during system operation. The laser scanning pattern of the present invention comprises a complex of pairs of quasi-orthogonal laser scanning planes, each composed by a plurality of substantially-vertical laser scanning planes for reading bar code symbols having bar code elements (i.e. ladder-type bar code symbols) that are oriented substantially horizontal with respect to the horizontal scanning window, and a plurality of substantially-horizontal laser scanning planes for reading bar code symbols having bar code elements (i.e. picket-fence type bar code symbols) that are oriented substantially vertical with respect to the horizontal scanning window.
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Citations
7 Claims
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1. A bioptical laser scanning system providing 360°
- omnidirectional bar code symbol scanning coverage at a point of sale (POS) station, said bioptical laser scanning system comprising;
a horizontal section integrally connected to a vertical section;
a horizontal-scanning window formed in said horizontal section;
a vertical-scanning window formed in said vertical section, and being substantially orthogonal to said bottom-scanning window;
a first plurality of laser beam folding mirrors disposed within said horizontal section;
a second plurality of laser beam folding mirrors disposed within said vertical section;
a first laser beam production module for producing first laser beam, and a second laser beam production module for producing a second laser beam;
a rotating scanning element disposed within said horizontal section and having multiple surfaces rotating about an axis of rotation, for (i) scanning said laser beam and producing a first laser scanning beam that reflects off said first plurality of laser beam folding mirrors to generate and project a first plurality of laser scanning planes through said horizontal-scanning window, and (ii) scanning said second laser beam and producing a second laser scanning beam that reflects off said second plurality of laser beam folding mirrors to generate and project a second plurality of laser scanning through said vertical-scanning window, whereby said first and second pluralities of laser scanning planes (i) intersect within predetermined scan regions contained within a 3-D scanning volume defined between said horizontal-scanning and vertical-scanning windows, and (ii) generate a plurality of groups of intersecting laser scanning planes within said 3-D scanning volume, and wherein said plurality of groups of intersecting laser scanning planes form a complex omni-directional 3-D laser scanning pattern within said 3-D scanning volume capable of scanning a bar code symbol located on the surface of an object presented within said 3-D scanning volume at any orientation and from any direction at said POS station so as to provide 360°
of omnidirectional bar code symbol scanning coverage at said POS station. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- omnidirectional bar code symbol scanning coverage at a point of sale (POS) station, said bioptical laser scanning system comprising;
Specification